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https://www.readbyqxmd.com/read/28298784/ventilation-of-nonparalyzed-patients-under-anesthesia-with-laryngeal-mask-airway-comparison-of-three-modes-of-ventilation-volume-controlled-ventilation-pressure-controlled-ventilation-and-pressure-controlled-ventilation-volume-guarantee
#1
Maroun Badwi Ghabach, Elie M El Hajj, Rouba D El Dib, Jeanette M Rkaiby, May S Matta, May R Helou
BACKGROUND: Pressure controlled ventilation (PCV) is the preferable mode of ventilation of nonparalyzed patients undergoing anesthesia with laryngeal mask airway (LMA) as compared to volume controlled ventilation (VCV) and spontaneously breathing patient. In this study, we compared the PC-volume guarantee (PC-VG) mode of ventilation with VCV and PCV modes. MATERIALS AND METHODS: A total of 30 patients, American Society of Anesthesiologists (ASA) physical status Classes I and II, scheduled for elective surgery under general anesthesia with a classic LMA were ventilated, subsequently, with the three modes of ventilation: VCV, PCV, and PC-VG for 10 min each mode...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28298751/comparative-study-of-two-laryngeal-mask-airways-proseal-laryngeal-mask-airway-and-supreme-laryngeal-mask-airway-in-anesthetized-paralyzed-adults-undergoing-elective-surgery
#2
Ravneet Kaur Gill, Abhijit Tarat, Debagopal Pathak, Suneeta Dutta
CONTEXT: Supraglottic airway devices can act as an alternative to endotracheal intubation in both normal and difficult airway. LMA Proseal (P-LMA) and LMA Supreme (S-LMA) alongwith acting as effective ventilating device, provide port for gastric drainage. AIM: The objective of this study was to compare the two devices for effective ventilation and complications. SETTING AND DESIGN: A prospective, randomized, single-blinded study was conducted in a tertiary care teaching hospital...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28241517/real-time-imaging-of-methane-gas-leaks-using-a-single-pixel-camera
#3
Graham M Gibson, Baoqing Sun, Matthew P Edgar, David B Phillips, Nils Hempler, Gareth T Maker, Graeme P A Malcolm, Miles J Padgett
We demonstrate a camera which can image methane gas at video rates, using only a single-pixel detector and structured illumination. The light source is an infrared laser diode operating at 1.651μm tuned to an absorption line of methane gas. The light is structured using an addressable micromirror array to pattern the laser output with a sequence of Hadamard masks. The resulting backscattered light is recorded using a single-pixel InGaAs detector which provides a measure of the correlation between the projected patterns and the gas distribution in the scene...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28223464/reversal-of-pap-failure-with-the-repap-protocol
#4
Barry Krakow, Victor A Ulibarri, Natalia D McIver, Carli Yonemoto, Alyssa Tidler, Jessica Obando, Michelle R Foley-Shea, Jonathan Ornelas, Spencer Dawson
BACKGROUND: Re-titrations, an atypical approach to reverse PAP failure, was investigated retrospectively. METHODS: Application of our re-titration of PAP (REPAP) protocol in subjects with previous PAP failure assessed original technology (masks, modes, and pressures) in 273 subjects, of which 70% reported co-occurring psychiatric conditions. The REPAP protocol emphasized changes in pressure modes and settings to address expiratory pressure intolerance and residual breathing events; mask changes were facilitated...
February 21, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28068958/effects-of-ventilator-settings-nebulizer-and-exhalation-port-position-on-albuterol-delivery-during-non-invasive-ventilation-an-in-vitro-study
#5
Yuda Sutherasan, Lorenzo Ball, Pasquale Raimondo, Valentina Caratto, Elisa Sanguineti, Federico Costantino, Maurizio Ferretti, Robert M Kacmarek, Paolo Pelosi
BACKGROUND: Few studies have investigated the factors affecting aerosol delivery during non-invasive ventilation (NIV). Our aim was to investigate, using a bench-top model, the effect of different ventilator settings and positions of the exhalation port and nebulizer on the amount of albuterol delivered to a lung simulator. METHODS: A lung model simulating spontaneous breathing was connected to a single-limb NIV ventilator, set in bi-level positive airway pressure (BIPAP) with inspiratory/expiratory pressures of 10/5, 15/10, 15/5, and 20/10 cmH2O, or continuous positive airway pressure (CPAP) of 5 and 10 cmH2O...
January 10, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28007547/microphase-separation-in-solid-lipid-dosage-forms-as-the-cause-of-drug-release-instability
#6
Diogo Gomes Lopes, Ioannis Koutsamanis, Karin Becker, Otto Scheibelhofer, Peter Laggner, Detlev Haack, Michael Stehr, Andreas Zimmer, Sharareh Salar-Behzadi
Although lipid excipients are of increasing interest for development of taste-masked and modified release formulations, the drug release instability and the lack of mechanistic understanding in that regard still prevent their larger-scale application. In this work, we investigated the physical stability of a binary (tripalmitin/polysorbate 65) lipid coating formulation with a known stable polymorphism. The coating composition was characterized using DSC to construct the phase diagram of binary system and polarized light microscopy to display the microstructure organization...
December 19, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27986462/factors-contributing-to-unintentional-leak-during-cpap-treatment-a-systematic-review
#7
REVIEW
Marius Lebret, Jean-Benoit Martinot, Nathalie Arnol, Daniel Zerillo, Renaud Tamisier, Jean-Louis Pepin, Jean-Christian Borel
Continuous positive airway pressure (CPAP) is the first-line treatment for moderate to severe obstructive sleep apnea syndrome (OSAS). Up to 25% of patients with OSAS discontinue CPAP treatment due to side effects. Unintentional leak and its associated annoying consequences are the most frequently reported adverse effects of CPAP. Successive technological improvements have not succeeded in addressing this issue. OBJECTIVES: A systematic review was conducted: (i) to assess the impact of different technological advances on unintentional leak and, (ii) to determine if any patient characteristics have already been identified as determinants of unintentional leak...
December 13, 2016: Chest
https://www.readbyqxmd.com/read/27960578/sutureless-scleral-tunnel-trabeculectomy-evaluation-of-feasibility-and-effectiveness-versus-conventional-trabeculectomy-for-management-of-primary-open-angle-glaucoma
#8
Hany A Khairy, Moataz F Elsawy, Khaled Said-Ahmed
PURPOSE: To evaluate the intraocular pressure-lowering effect of sutureless scleral tunnel trabeculectomy with Mitomycin-C (MMC) compared to the standard trabeculectomy with MMC in patients with primary open angle glaucoma (POAG). METHODS: This was a masked, randomized, controlled comparison trial involving 34 eyes of 34 patients with bilateral POAG. Patients were randomized to receive sutureless sclera flap trabeculectomy with MMC or conventional trabeculectomy with MMC...
December 14, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27937086/exposure-control-practices-for-administering-nitrous-oxide-a-survey-of-dentists-dental-hygienists-and-dental-assistants
#9
James M Boiano, Andrea L Steege, Marie H Sweeney
Engineering, administrative, and work practice controls have been recommended for many years to minimize exposure to nitrous oxide during dental procedures. To better understand the extent to which these exposure controls are used, the NIOSH Health and Safety Practices Survey of Healthcare Workers was conducted among members of professional practice organizations representing dentists, dental hygienists and dental assistants. The anonymous, modular, web-based survey was completed by 284 dental professionals in private practice who administered nitrous oxide to adult and/or pediatric patients in the seven days prior to the survey...
December 12, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27898069/clozapine-modifies-the-differentiation-program-of-human-adipocytes-inducing-browning
#10
E Kristóf, Q-M Doan-Xuan, A K Sárvári, Á Klusóczki, P Fischer-Posovszky, M Wabitsch, Z Bacso, P Bai, Z Balajthy, L Fésüs
Administration of second-generation antipsychotic drugs (SGAs) often leads to weight gain and consequent cardio-metabolic side effects. We observed that clozapine but not six other antipsychotic drugs reprogrammed the gene expression pattern of differentiating human adipocytes ex vivo, leading to an elevated expression of the browning marker gene UCP1, more and smaller lipid droplets and more mitochondrial DNA than in the untreated white adipocytes. Laser scanning cytometry showed that up to 40% of the differentiating single primary and Simpson-Golabi-Behmel syndrome (SGBS) adipocytes had the characteristic morphological features of browning cells...
November 29, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27847515/the-ambu%C3%A2-aura-i%C3%A2-laryngeal-mask-and-lma-supreme%C3%A2-a-randomized-trial-of-clinical-performance-and-fibreoptic-positioning-in-unparalysed-anaesthetised-patients-by-novices
#11
Zanahriah Yahaya, Wendy H Teoh, Nora A Dintan, Ravi Agrawal
Introduction. Manikin studies' data cannot accurately be extrapolated to real-life scenarios and inherent differences in design and materials of newer products may affect their clinical performance. Methods. Hence, we compared the AMBU® Aura-i™ and LMA Supreme™ in this randomized trial involving 100 ASA 1-2 unparalysed anaesthetised patients undergoing minor gynaecological surgery. Investigators had <20 Aura-i insertions. Primary outcome was time to achieve effective ventilation and secondarily insertion parameters, oropharyngeal leak pressures (OLP), fibreoptic positioning, and pharyngeal morbidity...
2016: Anesthesiology Research and Practice
https://www.readbyqxmd.com/read/27812636/gel-pillow-designed-specifically-for-obstructive-sleep-apnea-treatment-with-continuous-positive-airway-pressure
#12
Adriana Salvaggio, Anna Lo Bue, Serena Iacono Isidoro, Salvatore Romano, Oreste Marrone, Giuseppe Insalaco
Objective: To determine whether the use of a gel pillow with side cutouts designed to accommodate a continuous positive airway pressure (CPAP) mask and reduce head temperature improves the efficacy of and adherence to auto-CPAP therapy. Methods: Twenty-three consecutive CPAP-naïve patients with obstructive sleep apnea were enrolled in the study. Patients were given an auto-CPAP machine with an appropriate CPAP mask and were instructed to use CPAP for 15 nights...
September 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27761035/a-randomised-trial-to-compare-i-gel-and-proseal%C3%A2-laryngeal-mask-airway-for-airway-management-in-paediatric-patients
#13
R Nirupa, Satinder Gombar, Vanita Ahuja, Preeti Sharma
BACKGROUND AND AIMS: i-gel™ is a newer supraglottic airway device with a unique non-inflatable cuff. We aimed to compare i-gel™ with ProSeal™ laryngeal mask airway (PLMA™) in children scheduled for surgery under general anaesthesia (GA) with controlled ventilation. METHODS: This prospective, randomised controlled study was conducted in 100 surgical patients, aged 2-6 years of American Society of Anesthesiologists Physical Status I-II scheduled under GA. Patients were randomly allocated to receive either size 2 i-gel™ or PLMA™ as an airway device...
October 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27755181/sore-throat-following-three-adult-supraglottic-airway-devices-a-randomised-controlled-trial
#14
Joël L'Hermite, Elisabeth Dubout, Sophie Bouvet, Laure-Hélène Bracoud, Philippe Cuvillon, Jean-Emmanuel de La Coussaye, Jacques Ripart
BACKGROUND: Sore throat is a common complaint after surgery. It affects patient satisfaction and can affect activity after discharge. The supraglottic airway device (SAD) offers an alternative to traditional tracheal intubation with potential benefit in preventing sore throat. OBJECTIVE: The aim of this study was to compare the incidence of sore throat following three different SADs, the laryngeal mask airway Unique (LMA-U) and the more recent LMA Supreme (LMA-S) and the I-gel...
October 15, 2016: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/27754781/quantification-of-leakage-of-sub-micron-aerosols-through-surgical-masks-and-facemasks-for-pediatric-use
#15
Suvajyoti Guha, Brady McCaffrey, Prasanna Hariharan, Matthew R Myers
Surgical respirators, surgical masks (SMs) and facemasks for pediatric use (FPUs) are routinely used in the US healthcare industry as personal protective equipment (PPE) against infectious diseases. While N95s including surgical respirators have been routinely studied, SMs and FPUs have not received as much attention, particularly in the context of aerosolized threats. This is because SMs and PFUs are not designed to protect against sub-micron aerosols. However, with the possibility of new or re-emerging airborne diseases or bio-aerosol weapons lingering, combined with the limited availability of respirators and logistical issues associated with fit-testing millions, the general adult and pediatric populations may elect to wear SMs and FPUs, respectively, in the case of a pandemic or a bio-terrorist attack...
October 18, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27621860/use-of-laryngeal-mask-airway-for-non-endotracheal-intubated-anesthesia-for-patients-with-pectus-excavatum-undergoing-thoracoscopic-nuss-procedure
#16
Xiaojun Du, Songsong Mao, Jianxiu Cui, Jue Ma, Guangyan Zhang, Yong Zheng, Haiyu Zhou, Liang Xie, Dongkun Zhang, Ruiqing Shi, Gang Chen
BACKGROUND: The aim of the present study was to determine the safety and feasibility of the use of laryngeal mask airway (LMA) for non-endotracheal intubated anesthesia for patients with pectus excavatum (PE) undergoing thoracoscopic Nuss procedure. METHODS: Between July 2015 and December 2015, 30 selected patients with PE were planned to undergo a thoracoscopic Nuss procedure using LMA for non-endotracheal intubated anesthesia in the Guangdong General Hospital...
August 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27608342/optimal-flexible-laryngeal-mask-airway-size-in-children-weighing-10-to-20-kg
#17
K Z Chen, T J Liu, W X Li, X Shen
This prospective, randomised study was conducted to assess the effect of flexible laryngeal mask airway (FLMA) size on oropharyngeal leak pressure (OLP) in children at the recommended intracuff pressure. A total of 120 children undergoing elective ophthalmic surgery were randomly assigned to the size 2 FLMA group or size 2.5 FLMA group. The primary measurement was OLP at an intracuff pressure of 40 cmH2O. Secondary outcomes included the incidence of OLP <10 cmH2O, insufficient ventilation, gastric insufflation, insertion time, successful first-attempt insertion rate, fibreoptic view grade and pharyngolaryngeal adverse events...
September 2016: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/27607153/oronasal-mask-may-compromise-the-efficacy-of-continuous-positive-airway-pressure-on-osa-treatment-is-there-evidence-for-avoiding-the-oronasal-route
#18
Rafaela Garcia Santos Andrade, Fernanda Madeiro, Pedro Rodrigues Genta, Geraldo Lorenzi-Filho
PURPOSE OF REVIEW: Continuous positive airway pressure (CPAP) delivered by nasal mask is the gold standard treatment for obstructive sleep apnea (OSA). However, oral and oronasal masks are also available. We considered experimental evidence and reviewed clinical trials that evaluated the impact of oral and oronasal mask on OSA treatment. RECENT FINDINGS: One recent study in 18 OSA patients that slept with a customized oronasal mask with two sealed compartments showed that the change of CPAP flow from nasal to oronasal and oral caused upper airway obstruction because of posterior displacement of the tongue demonstrated by nasoendoscopy...
November 2016: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/27573519/neonatal-ventilation-with-a-manikin-model-and-two-novel-peep-valves-without-an-external-gas-source
#19
Monica Thallinger, Hege Langli Ersdal, Colin Morley, Carolyn Purington, Øystein Gomo, Estomih Mduma, Joar Eilevstjønn, Ketil Størdal
OBJECTIVE: Positive end expiratory pressure (PEEP) is beneficial when ventilating preterm newborns. The aim was to study whether inexperienced providers were able to generate PEEP during simulated neonatal ventilation, using two novel prototype PEEP valves, on a self-inflating bag without an external gas source. DESIGN: Forty-six nursing students in Tanzania were trained in ventilation with a new Laerdal Upright resuscitator and mask on a NeoNatalie manikin with a newborn resuscitation monitor...
August 29, 2016: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/27555181/laryngeal-mask-airway-proseal-provides-higher-oropharyngeal-leak-pressure-than-i-gel-in-adult-patients-under-general-anesthesia-a-meta-analysis
#20
REVIEW
Souvik Maitra, Dalim K Baidya, Mahesh K Arora, Sulagna Bhattacharjee, Puneet Khanna
STUDY OBJECTIVE: i-gel is a single-use supraglottic airway device that has a gastric drain tube similar to laryngeal mask airway (LMA) ProSeal. Randomized trials, when compared i-gel with LMA ProSeal, reported a differing results. Primary objective of this study is to compare LMA ProSeal and i-gel in terms of oropharyngeal leak pressure. DESIGN: Meta-analysis of randomized controlled trials where i-gel has been compared to LMA ProSeal in adult airway management during general anesthesia...
September 2016: Journal of Clinical Anesthesia
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